The carbon fiber Elektra One aircraft has solar cells on its wings[4] that help charge its electric engines during flight. The aircraft weighs just about 100 kg without its batteries and it is able to fly for approximately eight hours with a maximum range of approximately 1,000 kilometers at a speed of 100 kilometers/hour. Like the plane, the new mobile trailer is covered with photovoltaic cells – and it can be moved from site to site to help provide extra charging capacity for the Elektra One. With the trailer, the Elektra One’s batteries can be charged at a rate of 2 kW/hour.